Reply #2: call your local law enforcement

[better tomorrow]

if you are getting porn or what you consider offensive and you have told him to stop it, they can monitor it and maybe go after him or at least scare him into stopping. Tell him you are going to turn him in first and see if he will stop on his own. You might lose a friend but if this is the kind of people you have in your life right now, they aren't worth it. Good luck.

If all else fails, change your email address.....or block him with the one you have....